George f



NITED STATES PAT NT OFFICE.

GEORGE F. HUTOHINS, OF \VORCESTER, MASSACHUSETTS, ASSIGNOR TO 1 THE KNOVLES LOOM YVORKS, OF SAME PLACE. S

VARIABLE TAKE-UP MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 340,216, dated April 20, 1886.

Application filed J'rly 30, 1885. Serial No. 173,078. (No model.)

To all whom it may concern.- 1

Be it known that I, GEORGE F. HUTCHINS, a citizen of the United States,residing at Vorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Variable Take- Up Motions for Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings, making a part of this specification, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to variable take-up motion for looms; and it consists in certain novel features of construction of a variable take-up mechanism to be applied 'to looms of ordinary construct-ion, and which is operated by the attendant when desired, or automatically without the intervention of the attendant.

The object of my invention is to provide a mechanism by which the speed of rotation of the take-up roll may be varied by the operator or automatically.

' Referring to the drawings, Figure 1 is a side view, partly in section, of a portion of awellknown form of loom with my invention ap plied thereto. Fig. 2 is an end view of some of the parts shown in Fig. 1, looking in the direction ofarrow 1, same figure.

My invention relates only to variable takeup mechanism and its mode of attachment and operation upon a loom of any well-known construction and operation. I'have, therefore, only shown in the drawings such parts of a well-known form of loom as are essential to the proper understanding of my invention and the operation thereof.

In the accompanying drawings, the part marked a is a part of the loom side.

I) is a crank sccu red on the lower shaft ofthe loom in the usual manner.

d is the push-pawl for operating or turning the take-up roll,which is operated by the crank 11 in the usual manner,said pawl being secured thereto by means of the crankpin c, which is adjustable in a slot in the crank Z), so as to give .the pawl d any desired throw.

f is a ratchet-wheel turned by the pawl d and secured upon a stud,g, having its bearing in the loom side or frame a. A small pinion, z, is also secured upon said stud g and turns with the ratchet-wheel f. Said pinion z meshes with a gear, 00, secured upon the end of the cloth-roll y.

N is a check-pawl on stud 0, to hold the ratchet-wheel f, andprevent it from turning back when the pawl d is raised out of the teeth therein.

The part marked it is the shield, which extends over and is supported above the teeth of the ratchet-wheel f, as shown in Fig. 1, for the purpose of preventing the end eofthe pawl cl, when it is drawn back as the crankb revolves, from catching in the ratchet-wheel f back of the point of the shield h and revolving the ratchet-wheelf and the cloth-roll 3 to? far by the forward movement of the pawl d. If the shield h were stationary and always re mained in substantially the same position relatively tor-the teeth of the ratchet-wheel f and the end 6 of the pawl d when said pawl was moved back out of connection with said ratchet-wheel f the take-up motion would always be substantially the same, and it would be necessary for the operator to turn with his hand the ratchet-wheel f if he wished for any reason to take up the material faster or to vary the take-up motion, and this has been heretofore generally done; but by my invention this is rendered unnecessary, for the shield 71. is secured to one end of what may be called the shield-stand or support 2', which is supported by and movable upon the stud g. The other end of said shieldstand t is connected with the lower end of the link k, which link k passes through the guiding piece or stand Z, at-

tached to the loom side, and is provided with a handle,p, atits npperend, by means of whichitcan be moved up or down through thestand I. There is a slot, m, in the upper part of the link It, into which in this instance the end of the handle 1) enters, being tapped into the piece a.

The part marked q is an adjusting-piece fastened to the link It by the screw 7', which passes through the slotm therein and is tapped into the said piece When the link It is raised to its highest position and the mechanism adjusted to the greatest amount of takeup desired, the adjusting-piece q will strike the bottom of the stand 1, and the springs, secured to the stand I, catching under the piece (1, will hold the link It in place. 1

Below the adjusting-piece an adjustingpiece or support, 25, is fastened to the link is by the screw to, and a spring, 12, is secured to the piece t, as shown in Fig. 1, the upper end of which snaps into the notch 10 in the stand I and holds the link k in position when the link is raised a certain distance corresponding to a desired amount of take-up.

The mechanism above described is operated by the attendant inthe following manner: The several parts of the take-up'mechanism being in substantially the position shown in the drawings, if it is desired to vary the take-up motion of the loom and to take up the material faster by reason of the larger weft being woven into the material, or for any other reason, the attendant, first having adjusted the piece 25 upon the link 7r, raises the link It by the handle 19 until the spring 0 snaps into the notch 10 in the standl; or, if he wishes to raise the link It to its highest position, to have the greatest amount of take-up, he adjusts the piece q and raises the link It until the spring 8 catches under said picce q. The raising of the link It, fastened to one end of the pivoted or movable support 'i, draws down the other end and also the shield it away from the end 0 of the pawl (1, allowing the end 0 to catch farther back in the ratchet-wheel], according to the distance the shield h is drawn back,and to turn the ratchet-wheelf a greater distance, as the pawl d is moved forward, thus increasing the amount of take-up as maybe desired.

Instead of having my variable takeup mechanism operated by the attendant, as above described, it may be operated automatically,

if preferred, and I will now proceed to describe the mechanism shown in the drawings for operating it automatically.

The part marked H is a part of the drop box, of the usual and well-known construct ion, shown in section.

G is the box-chain, which operates the drop- 1 box H 111 the usual and well-known manner. 1 E is a stand, attached to the loom side a,

and provided with a stud, F, on which the guide-pulley D revolves.

B is a hub, movable on the box-chain G,

and secured thereto atany desired point by the set-screw O. A strap, cord, or chain, A,

the direction of arrow 2, Fig. 1, and consequently the drop'box H brought into position to have a certain shuttle thrown from it, (at which time it is desired to have a greater amount of takeup of the cloth,) the end of the arm 1' carrying the shieldh is pulled down and away from the end e of the pawl (1, allowing i the end of the pawl to drop into the ratchetwheel f farther back, and thus causing it to revolve or turn said ratchet-wheel and the take-up roll a greater distance, in the manner hereinbefore described, as the pawl d moves forward. Thus a greater amount of take-up is given to the cloth as long as said lowest compartment of the drop-box is in position. \Vhen the lowest compartment of the dropbox H is no longer in position to have the shuttle thrown therefrom, the tension on the strap A is released, and the spring M, secured at one end to the loom-frame and at the other end to the lower end of the link k or the end of the supporting-piece'i, will draw the shield it back to its original position, and also the link It.

In case it is not desired to operate automatically my variable take-up mechanism, it is only necessary to loosen the set-screw C and let the hub B be loose upon the box-chain G.

If preferred, the variable take-up motion may be operated partly by the attendant a .d partly automatically, or the mechanism above described for operating it automatically may be left off entirely.

Having described my improvements in variable take-up motions for looms, what I claim as my invention, and desire to secure by Letters Patent, is- 1. The combination, with the ratchet-wheel f, the pawl d, and the crank for operating the latter, of the movable shield, the shield-support, the link attached to said support, the .piece q, adjustably secured to said link, the stand Z, and the spring 8, substantially as set forth.

2. The combination, with the ratchet-wheel f, the pawl d, andmeans for operating the latter, of the shield-support, the link attached to said support, the notched stand Z, the piece 1, adj ustabl y secured to said link, and the spring 1), carried by the said adjusting -piece and adapted to engage the notch in the said stand, substantially as set forth.

3. The combination, with the ratchet-wheel, the pawl, means for operating the latter, the shield, and the movable support for said shield, of the verticallymovable link k, the adjusting-pieces q and t, attached to said link, the springs s and o, and the stand l,'substantially as set forth.

4. The combination, with the ratchet-wheel f, the pawl d, and means for operating the latter, of the movable shield h, the shield-support i, the spring for moving said support in one direction, the box-chain G, and a cord attached to said support and adj ustably connected with said box-chain, and thereby adapted to move said support in opposition to the movement imparted thereto by said spring, substantially as set forth.

' GEORGE F. HUTCI-IINS. Vi tn esses:

JOHN G. DEWEY,

FRED. W. SMITH.

XIO 

